E-motion rollers

So, the response to my first inquiry was not so fruitful. Is that because no one uses the Minoura Action Mag Rollers? All I want to know is if they work, specifically, does the resistance unit work well. My next concern is about the the E-motion by Insideride.com. Is there anybody out there who has experience on this roller and can give me a little feedback on its effectiveness? Thank you. Glenn Sweet

Have not used the e-motion rollers but they seem very interesting to me.
The thing that makes them special is the roller frame is spring mounted inside another frame that rests on the floor.
The advantage is supposed to be that fore-aft movements absorbed by the springs between frames and the ride is smoother.
There are also bumber rollers front and back that you are not supposed to hit.